Friction-clutch



(No Model.) 2 Sheets-$heet 1..

B. SMITH. FRICTION GLUTGH.

o. 244,493. Patented July 19,1881..

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( -x 2 Sheets--fiheet 2.

B. SMITH. FRICTION CLUTCH.

No. 244,493. Patented July 19,1881.

' UNITED STATES PATENT OFFICE.

flmnnisitrrn, on sari r i-rancisco, Assieson or ONE-HALF ro FRANK r. fBA'comoF OAKLAND, nn war/run o. rnionns, or sas- FRANCISCO,

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FRICTlQN-CLUTCH.

' .st'iiei eIeATroN forming part of Letters Patent No, 244,493, dated July 19, 1881.

" i 1 Application tilt-d December ti, mu, (No model.)

' omfitgmua/concern: Let A A represent a shalt or axle to which 0. p linowii that 1 BUDD SMITH, of the it is desired to impart. acontinnous rotary mocity and cou ntyof San Francisco, in the State tion. Upon this axle or shaft 1 permanently of l'i'ornia, have invented an Improved secure, by keys or otherwise, a'wheel or disk, 5"Fric err-Clutch; and I do hereby declare that I ll, on each sidcol' which is a protecting flange tlieffollowing is a full, clear, and, exact deor rinr, r, near its periphery. l'lach 'llange or scription thereof, reference being bad to the rim is continuous, extending entirely around "accompanying drawings. the wheel or disk. This wheel or disk has a 'lfhebbje'et o-flniy in\',e ntion is to combine in long huh, (I, while its ontercdge has a narrow 1p fonlefinachinetwo alternately-aeting' i'rictionband, 1/, around it. On each side 01' this 'wiheel clutches and their appropriatc ,operatinglc- .or disk 1 place a loose box or case, F, one side 60 tiers, so thatwvhcn the compound clutch thus oi which is open. Eachbdxor'case'hasa huh, eoi'lst'ru'cted' is secured npona shaft or axle y, extending inward, and this hub is'large .and ah a-lternate reciprocatingmotion is given enough in diameter to slip over the hub 11 t 1 's the levers a continuous.rotar; mot ion will the disk. The open side of each box or case beiiliparted to the shaft or axle. isplaced .next to the disk, so that the edge of 6' It consists of a wheel or disk, which is proits outer rim willfit against and correspond \"idedjv'ith'aprojectingflange or rim on each with the outer rim or band of the disk B, thus side ear its peripl1ery,and twocircnlgu' boxes forming a single machine oi compact and conor- 1 s'tis, one on each side of. the wheel or disk. venicnt size. in each case 1*, l place'a numliieinterniediate wheel or diskispermanentl v ber of radial 'bars or dogsylr, which extend secured upon the shaft or axlc=, w,hile the cases outward to near the outer rim of the case. on each side areloosc and indepeiu'lcnt. llach 'Jhe-i'oot'of each bar or dog sets-in a recess or case contains one or more slotted radial dogs I cavity in the hub g oi its case, and a trans 2 5 'or-bars, which gripe the rim on the disk, and verse groove is made in each one opposite the "an operating-lever is attached to each case, so flange or rim U on the wheel or disk I)! so that that when the lovers are operated alternately it will [it over the flange. A spiral or other "upand down the dogs in the cases will alterspring, I, connects the outer end of each dog na'tely gripethe flange on one side and then with the case, so as to cause it to bite or gripe 30' out-he other and impart to the disk and shalt the flange by drawing its upper end in one dioraxle a continuous rotary motion. rection. 1n the present instance I have rep- 8o My invention also-includes an arrangement resented six dogs in each case, three above the 'by which the motion of the disk can be reshaft and three below oneach side of the disk.

versed when desired, all as hereinafter more The springs l are applied on one side oi the 35" fully described. dogs above the shaft and on the opposite side Referring to the accmnpguiying drawings, oi those below the shaft, so that they bite or Figure l'isa longitudinal section through my gripe in opposite directions, thus holding,- the inipro'ved'clutch. Fig. 2 is an inside view of disk innnovable when all the dogs are down. oneof the cases'removed, butwith the clutches A spring, 1:, is applied behind each dog, so as '40 and-operating-lever in position. Fig. 3 is a to thrust its outer end toward the disk and iew with a portion'ot' the outside casing brocause its groove to engage with the rim or ken'away, and showing a part of the clutches flange U of the disk. flhe three lower dogs on ."thrown' out of action. Fig. 4 is a view taken each side are connected at their lower ends by from the side of Fig. 3. All these views show a curved bar, in, andthe three upper dogs on 5 the arrangement ot" the clutches or dogs in each side are also connected in the same way.

sets ofthree.v Figs. 5 and 6 show thedogs ar- A cam, 0, is arranged to press each of these 9 5 ranged separately, tobe thrown out of action bars inward when desired,thus simultaneously independently of one another. l ig. 7 is a dedisengaging the three dogs with which it is p 1 tail of these independent dogs. connected from the rim 0. An operating-lefor the work it is to do.

cor, l, is :iltnehed to each ease l and theee levers are operated alternately in order to drive the disk 1.- and shaft A. in practice I will either connect the outer ends of these two levers by a cord or strap which passes up over 2m roller, so thut a. downward pressure on one will lift the other, thus retpiiring'only a downward force to be applied to each lever ulternul'el in order to produce the desirei'l eontiuuons rotnry niotioinor 1 will operate it by steam-power by connecting the levers with ernnks on on engine-shaft.

.ln operating this Clutch 1 throw the upper set oi dogs on eaehsideout oi notion bJ'lilOtillS oi the ezuns O, leaving only the lower set on eneh side in engagement. 1. then apply the downward force to the lovers nlternn-tely, which. causes the cases F F to move partially around and book, alternately carrying the dish with them in one direction by the gri ling" of the dogs and releasing it. in the opposite direction. This produces the continuous rotary motion. To reverse the motion 1 disengage the lower set of dogs on each side from the rim (.l by means of their cams, and throw the upper set of dogs on each .side into engagement with it by releasing their cams. As the springs in those of the upper set not in an opposite direction from those in the lower set, the rim 0 will he griped when the eases move in the opposite direetion, thus reversing the motion. The adjustment nnd-eeiion oi the dog's, how ever, can be regular-ted by the nieohanieinconstrneting the elnteh, in order to best adapt it. This arrangement is SllOWfl. in Figs. 5 and (l of drawings, and it provides it compact and convenient clutch which can be used for driving shafts and axles by n simple and direct application of power.

lIn-ving thus described my invention, what I claim, and desire to secure by Letters Putent, is--' 1. In it reversihle irietion-eluteh, the combination, with the wheelordisk13,1zavingila'1nge or griping-ring t, and the independent ens-es h, ol' the. griping-dogs 7c, springs 11, and (logs 0, arranged to operate substantially as and for the purpose set forth.

L. A. reversible i'rietion-eluteh consisting; of

the independent cases 1* F, having on upper f and lower set oi dogs whieh net in opposite directions, each set being eonueeted bya bn-r, m, and arranged to be. disei'mmreted from the gripiug' rim (.l by :1 Cal-ll], (l, or its equivalent,

mibstnntially'as described.

13. The wheel or dislk 1, huvinggripingirims U, and eirellmi'erential'hund 1-,projeeting from each time or side of the wheel or disl nnd enrrying the dogs. Ir, in combination with the independent.- enses 1 h, carrying the pivoted earns 0, and having an inner proieetingeirennlfereutiu-l rim to tit against the outer edges of the band 4, to inelose or inease the several 6635335555"letters tent.- ii( )i 24414 93 Patent Ofiiee.

ixnpropeily granted to said Budd Smith as the owner of one-ha1f interest therein;

' jwhe eas it appears by assignments upon record in this Office, (Liber E26, page 109, i Land I26, page 228,) that said Smith had assigned his entireinterest to Frank P. Bacon ime Walton G. Hughes, and that the said Letters Patent should have been granted to ftaidFi-ahk P. Bacon and Walton G. Hughes; that the proper corrections heve been inade in the files and papers relating tothe case in the Patent Office, and ere hereby ima ie'in said Letters Patent, to make the title 'therein eonform to the records of the this 11th day of October, A. 1). 1881.

' I l A. BELL,

Acting Secretary-bf the Interior.

Signed, countersigned, and seaied '[smn] E. Kunmin Fountersighed'if E Commis of Patents.

.l.....n i -.-V...H.

It is hereby certified that Letters Patent No. 244,493, issued July 19, 1881, fo ui fimprovement in Friction Olutehes, upon the application of Budd Smith, were 

